(help) need some help about combo

hi guys, i really need some help about combo
so after the tier 4 release as a 2h we take the new skill as our dps right, but there is something bother me
i put my combo list in here...what i want to ask is, is it normal if i use that combo i spend almost 400mp
i try to mimic Devil glen combo, but somehow at 2nd impact i keep using 300mp, is something i missing?

my main combo is
Reflex - warcry (save) - quick aura(swift) - astute(con) - impact(con) - meteor break(smite) - spiral air(con) - buster blade(smite) - triger slash (con)


thanks in advance

 

You ran out of Save MP after Meteor Break (Smite), as it consumed the 3 MP (halved due to Impact) saved from War Cry. Therefore, Buster Blade (Smite) requires the full MP cost to utilize.

 

thanks a lot for the explanation i got it now
once again thanks